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There are  $\\var{number}$  students in Year  $4$  at the local primary school.

In order to find  $\\displaystyle{\\frac{\\var{num}}{\\var{den}}}$  of  $\\var{number}$, we can first find $\\displaystyle{\\frac{1}{\\var{den}}}$  of  $\\var{number}$, then multiply this answer by  $\\var{num}$.

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$\\var{number} \\div \\var{den} = \\var{number/den}$.

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So $\\displaystyle{\\frac{1}{\\var{den}}} \\text{ of } \\var{number} = \\var{number/den}$.

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$\\displaystyle{\\frac{\\var{num}}{\\var{den}}} \\text{ of } \\var{number} = \\var{num} \\times \\var{number/den} = \\var{num*number/den}$.

\n

So  $\\var{num*number/den}$  students in Year  $4$  at the local primary school have CALD backgrounds.

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$\\displaystyle{\\frac{\\var{num}}{\\var{den}}}$  of them come from culturally and linguistically diverse (CALD) backgrounds.

\n

How many students in Year  $4$  have CALD backgrounds?

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